1、 IEC 60300-3-15 Edition 1.0 2009-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Dependability management Part 3-15: Application guide Engineering of system dependability Gestion de la sret de fonctionnement Partie 3-15: Guide dapplication Ingnierie de la sret de fonctionnement des systmes IEC 60300-
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16、rvice clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60300-3-15 Edition 1.0 2009-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Dependability management Part 3-15: Application guide Engineering of system dependability Gestion de la sret de fonctionnement
17、Partie 3-15: Guide dapplication Ingnierie de la sret de fonctionnement des systmes INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 03.120.01 PRICE CODE CODE PRIX ISBN 2-8318-1048-4 Registered trademark of the International Electrotechnical Commission Marqu
18、e dpose de la Commission Electrotechnique Internationale 2 60300-3-15 IEC:2009 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms and definitions .7 4 System dependability engineering and applications8 4.1 Overview of system dependability engineering 8 4.2 System dependab
19、ility attributes and performance characteristics 9 5 Managing system dependability10 5.1 Dependability management .10 5.2 System dependability projects .10 5.3 Tailoring to meet project needs .11 5.4 Dependability assurance .11 6 Realization of system dependability11 6.1 Process for engineering depe
20、ndability into systems.11 6.1.1 Purpose of dependability process 11 6.1.2 System life cycle and processes11 6.1.3 Process applications through the system life cycle 12 6.2 Achievement of system dependability14 6.2.1 Purpose of system dependability achievements.14 6.2.2 Criteria for system dependabil
21、ity achievements .14 6.2.3 Methodology for system dependability achievements.15 6.2.4 Realization of system functions .16 6.2.5 Approaches to determine achievement of system dependability.17 6.2.6 Objective evidence of achievements18 6.3 Assessment of system dependability .18 6.3.1 Purpose of system
22、 dependability assessments 18 6.3.2 Types of assessments .18 6.3.3 Methodology for system dependability assessments20 6.3.4 Assessment value and implications .21 6.4 Measurement of system dependability.21 6.4.1 Purpose of system dependability measurements .21 6.4.2 Classification of system dependabi
23、lity measurements22 6.4.3 Sources of measurements .23 6.4.4 Enabling systems for dependability measurements23 6.4.5 Interpretation of dependability measurements24 Annex A (informative) System life cycle processes and applications 25 Annex B (informative) Methods and tools for system dependability de
24、velopment and assurance.35 Annex C (informative) Guidance on system application environment42 Annex D (informative) Checklists for System Dependability Engineering47 Bibliography54 Figure 1 An overview of a system life cycle12 Figure 2 An example of a process model .13 60300-3-15 IEC:2009 3 Figure A
25、.1 An overview of system life cycle processes.25 Figure C.1 Environmental requirements definition process.43 Figure C.2 Mapping system application environments to exposures .44 4 60300-3-15 IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DEPENDABILITY MANAGEMENT Part 3-15: Application guide Eng
26、ineering of system dependability FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions
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35、blications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject
36、of patent rights. IEC should not be held responsible for identifying any or all such patent rights. International Standard IEC 60300-3-15 has been prepared by IEC technical committee 56: Dependability. The text of this standard is based on the following documents: FDIS Report on voting 56/1315/FDIS
37、56/1321/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 60300-3-15 IEC:2009 5 A list of all parts of the IEC 60300 series, unde
38、r the general title Dependability management, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publi
39、cation. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 60300-3-15 IEC:2009 INTRODUCTION Systems are growing in complexity in todays application environments. System dependability has become an important performance attribute that affects th
40、e business strategies in system acquisition and the cost-effectiveness in system ownership and operations. The overall dependability of a system is the combined result of complex interactions of system elements, application environments, human-machine interfaces, deployment of support services and o
41、ther influencing factors. This part of IEC 60300 gives guidance on the engineering of the overall system to achieve its dependability objectives. The engineering approach in this standard represents the application of appropriate scientific knowledge and relevant technical disciplines for realizing
42、the required dependability for the system of interest. The four main aspects for engineering dependability concerning systems are addressed in terms of process, achievement, assessment, and measurement. The engineering disciplines consist of technical processes that are applicable to the various sta
43、ges of the system life cycle. Specific technical processes described in this part of IEC 60300 are supported by a sequence of relevant process activities to achieve the objectives of each system life cycle stage. This part of IEC 60300 is applicable to generic systems with interacting system functio
44、ns consisting of hardware, software and human elements to achieve system performance objectives. In many cases a function can be realized by commercial off-the-shelf products. A system can link to other systems to form a network. The boundaries separating a product from a system, and a system from a
45、 network, can be distinguished by defining the application of the entity. For example, a digital timer as a product can be used to synchronize the operation of a computer; the computer as a system can be linked with other computers in a business office for communications as a local area network. The
46、 application environment is applicable to all kinds of systems. Examples of applicable systems include control systems for power generation, fault-tolerant computing systems and systems for provision of maintenance support services. Guidance on dependability engineering is provided for generic syste
47、ms. It does not classify systems for special applications. The majority of systems in use are generally repairable throughout their life cycle operation for economic reasons and practical applications. Non- repairable systems such as communication satellites, remote sensing/monitoring equipment, and
48、 one-shot devices are considered as application-specific systems. They require further identification of specific application environment, operational conditions and additional information on unique performance characteristics to achieve their mission success objectives. Non-repairable subsystems an
49、d components are considered as throwaway items. The selection of applicable processes for engineering dependability into a specific system is carried out through the project tailoring and dependability management process. This part of IEC 60300 forms part of the framework standards on system aspects of dependability to support IEC 60300-1 and IEC 60300-2 on dependability management. References ar
